Commit Graph

147 Commits

Author SHA1 Message Date
H.J. Lu 53d7974cd8 2009-12-07 H.J. Lu <hongjiu.lu@intel.com>
PR gold/10893
	* i386.cc (Target_i386::Scan::globa): Use is_func instead of
	checking elfcpp::STT_FUNC.
	(Target_i386::Relocate::relocate): Likewise.
	* x86_64.cc (Target_x86_64::Scan::global): Likewise.

	* symtab.cc (Symbol_table::sized_write_symbol): Turn IFUNC
	symbols from shared libraries into normal FUNC symbols.

	* symtab.h (Symbol): Add is_func and use it.
2009-12-07 17:14:55 +00:00
Ian Lance Taylor 1ae4d23b73 PR 10860
* options.h (class General_options): Add --warn-common.
	* resolve.cc (Symbol_table::resolve): Handle --warn-common when
	merging two common symbols.
	(Symbol_table::should_override): Handle --warn-common when merging
	a common symbol with a defined symbol.  Use report_resolve_problem
	for multiple definitions.
	(Symbol_table::report_resolve_problem): New function.
	* symtab.h (class Symbol_table): Declare report_resolve_problem.
2009-11-04 01:24:41 +00:00
Ian Lance Taylor 374ad2854b Add support for -pie.
* options.h (class General_options): Add -pie and
	--pic-executable.
	(General_options::output_is_position_independent): Test -pie.
	(General_options::output_is_executable): Return true if not shared
	and not relocatable.
	(General_options::output_is_pie): Remove.
	* options.cc (General_options::finalize): Reject incompatible uses
	of -pie.
	* gold.cc (queue_middle_tasks): A -pie link is not static.
	* symtab.h (Symbol::needs_plt_entry): Return false if -pie.
	* symtab.cc (Symbol::final_value_is_known): Return false if
	output_is_position_independent.
	* layout.cc (Layout::set_segment_offsets): Start at address 0 if
	output_is_position_independent.
	* output.cc (Output_file_header::do_sized_write): Use ET_DYN if
	output_is_position_independent.
	* i386.cc (Output_data_plt_i386::do_write): Use the PIC PLT if
	output_is_position_independent.
	* testsuite/Makefile.am (check_PROGRAMS): Add basic_pie_test and
	two_file_pie_test.
	(basic_pie_test.o, basic_pie_test): New targets.
	(two_file_test_1_pie.o, two_file_test_1b_pie.o): New targets.
	(two_file_test_2_pie.o, two_file_test_main_pie.o): New targets.
	(two_file_pie_test): New target.
	* testsuite/Makefile.in: Rebuild.
	* README: Remove note saying that -pie is not supported.
2009-10-14 05:25:02 +00:00
Sriraman Tallam f345227a0c * symtab.h: Check for GOLD_SYMTAB_H before header includes. Remove
includes to gc.h and icf.h.
	* arm.cc: Include gc.h.
	* gold.cc: Likewise.
	* i386.cc: Likewise.
	* powerpc.cc: Likewise.
	* sparc.cc: Likewise.
	* x86_64.cc: Likewise.
	* gc.h: Include icf.h.
2009-10-13 00:39:31 +00:00
Doug Kwan c0a6286595 2009-10-09 Doug Kwan <dougkwan@google.com>
* layout.cc (Layout::make_output_section): Call target hook to make
	ordinary output section.
	(Layout::finalize): Adjust parameter list of call the
	Target::may_relax().
	* layout.h (class Layout::section_list): New method.
	* merge.h (Output_merge_base::entsize): Change visibility to public.
	(Output_merge_base::is_string, Output_merge_base::do_is_string):
	New methods.
	(Output_merge_string::do_is_string): New method.
	* object.cc (Sized_relobj::do_setup): renamed from
	Sized_relobj::set_up.
	* object.h (Sized_relobj::adjust_shndx,
	Sized_relobj::initializ_input_to_output_maps,
	Sized_relobj::free_input_to_output_maps): Change visibilities to
	protected.
	(Sized_relobj::setup): Virtualize.
	(Sized_relobj::do_setup): New method declaration.
	(Sized_relobj::invalidate_section_offset,
	Sized_relobj::do_invalidate_section_offset): New method decfinitions.
	(Sized_relobj::elf_file, Sized_relobj::local_values): New methods.
	* options.cc (parse_int): New function.
	* options.h (parse_int): New declaration.
	(DEFINE_int): New macro.
	(stub_group_size): New option.
	* output.cc (Output_section::Output_section): Initialize memebers
	merge_section_map_, merge_section_by_properties_map_,
	relaxed_input_section_map_, is_relaxed_input_section_map_valid_.
	(Output_section::add_input_section): Handled deferred code-fill
	generation and remove an old comment.
	(Output_section::add_relaxed_input_section): New method definition.
	(Output_section::add_merge_input_section): Use merge section by
	properties map to speed to search.  Update merge section maps
	as appropriate.
	(Output_section::build_relaxation_map): New method definition.
	(Output_section::convert_input_sections_in_list_to_relaxed_sections):
	Same.
	(Output_section::relax_input_section): Renamed to
	Output_section::convert_input_sections_to_relaxed_sections and change
	interface to take a vector of pointers to relaxed sections.
	(Output_section::find_merge_section,
	Output_section::find_relaxed_input_section): New method definitions.
	(Output_section::is_input_address_mapped,
	Output_section::output_offset, Output_section::output_address):
	Use output section data maps to speed up searching.
	(Output_section::find_starting_output_address): Add comments.
	(Output_section::do_write,
	Output_section::write_to_postprocessing_buffer): Do code-fill
	generation as appropriate.
	(Output_section::get_input_sections): Invalidate relaxed input section
	map.
	(Output_section::restore_states): Adjust type of checkpoint .
	Invalidate relaxed input section map.
	* output.h (Output_merge_base): New class declaration.
	(Input_section_specifier): New class defintion.
	(class Output_relaxed_input_section) Change base class to
	Output_section_data_build.
	(Output_relaxed_input_section::Output_relaxed_input_section): Adjust
	base class initializer.
	(Output_section::add_relaxed_input_section): New method declaration.
	(Output_section::Input_section): Change visibility to protected.
     	(Output_section::Input_section::relobj,
	Output_section::Input_section::shndx): Handle relaxed input sections.
	Output_section::input_sections) Change visibility to protected.  Also
	define overload to return a non-const pointer.
	(Output_section::Merge_section_properties): New class defintion.
	(Output_section::Merge_section_by_properties_map,
	Output_section::Output_section_data_by_input_section_map,
	Output_section::Relaxation_map): New types.
	(Output_section::relax_input_section): Rename method to
	Output_section::convert_input_sections_to_relaxed_sections and change
	interface to take a vector of relaxed section pointers.
	(Output_section::find_merge_section,
	Output_section::find_relaxed_input_section,
	Output_section::build_relaxation_map,
	Output_section::convert_input_sections_in_list_to_relaxed_sections):
	New method declarations.
	(Output_section::merge_section_map_
	Output_section::merge_section_by_properties_map_,
	Output_section::relaxed_input_section_map_,
	Output_section::is_relaxed_input_section_map_valid_,
	Output_section::generate_code_fills_at_write_): New data members.
	* script-sections.cc
	(Output_section_element_input::set_section_addresses): Call
	current_data_size and addralign methods of relaxed input sections.
	(Orphan_output_section::set_section_addresses): Call current_data_size
	and addralign methods of relaxed input sections.
	* symtab.cc (Symbol_table::compute_final_value): Extract template
	from the body of Symbol_table::sized_finalize_symbol.
	(Symbol_table::sized_finalized_symbol): Call
	Symbol_table::compute_final_value.
	* symtab.h (Symbol_table::Compute_final_value_status): New enum type.
	(Symbol_table::compute_final_value): New templated method declaration.
	* target.cc (Target::do_make_output_section): New method defintion.
	* target.h (Target::make_output_section): New method declaration.
	(Target::relax): Add more parameters for input objects, symbol table
	and layout.  Adjust call to do_relax.
	(Target::do_make_output_section): New method declaration.
	(Target::do_relax): Add parameters for input objects, symbol table
	and layout.
2009-10-09 23:18:19 +00:00
Doug Kwan 966d409744 2009-09-30 Doug Kwan <dougkwan@google.com>
* arm.cc (Target_arm::may_need_copy_reloc): Check for THUMB function
	symbol and call Symbol::may_need_copy_reloc to determine if
	a copy reloc is needed.
	* copy-relocs.cc (Copy_relocs::need_copy_reloc): Return false if -z
	nocopyreloc is given in command line.
	(Copy_relocs::emit_copy_reloc): Assert that -z nocopyreloc is not
	given in command line.
	* i386.cc (Target_i386::may_need_copy_reloc): Remove.
	(Target_i386::Scan::global): Use Symbol::may_need_copy_reloc instead
	of the removed Target_i386::may_need_copy_reloc.
	* options.h (copyreloc): New option with default value false.
	* powerpc.cc (Target_powerpc::may_need_copy_reloc): Remove.
	(Target_powerpc::Scan::global): Use Symbol::may_need_copy_reloc
	instead of the removed Target_powerpc::may_need_copy_reloc.
	* sparc.cc (Target_powerpc::may_need_copy_reloc): Remove.
	(Target_sparc::Scan::global): Use Symbol::may_need_copy_reloc
	instead of the removed Target_sparc::may_need_copy_reloc.
	* symtab.h (Symbol::may_need_copy_reloc): New method definition.
	* x86_64.cc (Target_powerpc::may_need_copy_reloc): Remove.
	(Target_x86_64::Scan::global): Use Symbol::may_need_copy_reloc
	instead of the removed Target_x86_64::may_need_copy_reloc.
2009-10-01 00:58:38 +00:00
Ian Lance Taylor 029ba97335 * object.h (class Object): Remove target_ field, and target,
sized_target, and set_target methods.
	(Object::sized_target): Remove.
	(class Sized_relobj): Update declarations.  Remove sized_target.
	* object.cc (Sized_relobj::setup): Remove target parameter.
	Change all callers.
	(Input_objects::add_object): Don't do anything with the target.
	(make_elf_sized_object): Add punconfigured parameter.  Change all
	callers.  Set or test parameter target.
	* dynobj.cc (Sized_dynobj::target): Remove target parameter.
	Change all callers.
	* parameters.cc (Parameters::set_target): Change parameter type to
	be non-const.
	(Parameters::default_target): Remove.
	(set_parameters_target): Change parameter type to be non-const.
	(parameters_force_valid_target): New function.
	(parameters_clear_target): New function.
	* parameters.h (class Parameters): Update declarations.  Remove
	default_target method.  Add sized_target and clear_target
	methods.  Change target_ to be non-const.
	(set_parameters_target): Update declaration.
	(parameters_force_valid_target): Declare.
	(parameters_clear_target): Declare.
	* readsyms.cc (Read_symbols::do_read_symbols): Pass punconfigured
	as NULL if we aren't searching.
	(Add_symbols::run): Don't check for compatible target.
	* fileread.cc (Input_file::open_binary): Call
	parameters_force_valid_target.
	* gold.cc (queue_middle_tasks): Likewise.
	* plugin.cc (make_sized_plugin_object): Likewise.  Don't call
	set_target on object.
	* dynobj.h (class Sized_dynobj): Update declarations.
	* archive.cc (Archive::get_elf_object_for_member): Return NULL if
	make_elf_object returns NULL.
	(Archive::include_member): Don't check whether object target is
	compatible.
	* output.cc (Output_section::add_input_section): Get target from
	parameters.
	(Output_section::relax_input_section): Likewise.
	* reloc.cc (Sized_relobj::do_gc_process_relocs): Get target from
	parameters.
	(Sized_relobj::do_scan_relocs): Likewise.
	(Sized_relobj::relocate_sections): Likewise.
	* resolve.cc (Symbol_table::resolve): Likewise.
	* symtab.cc (Symbol_table::wrap_symbol): Likewise.  Remove object
	parameter.  Change all callers.
	(Symbol_table::add_from_object): Get target from parameters.
	(Symbol_table::add_from_relobj): Don't check object target.
	(Symbol_table::add_from_dynobj): Likewise.
	(Symbol_table::define_special_symbol): Get target from
	parameters.
	* symtab.h (class Symbol_table): Update declaration.
	* testsuite/binary_unittest.cc (gold_testsuite): Remove target
	parameter.  Change all callers.  Clear parameter target.
	(Binary_test): Test target here.
	* testsuite/object_unittest.cc (gold_testsuite): Remove
	target_test_pointer parameter.  Change all callers.
	(Object_test): Test target here.
2009-09-30 22:21:13 +00:00
Sriraman Tallam ef15dade89 *** empty log message *** 2009-08-05 20:51:56 +00:00
Ian Lance Taylor 8a5e3e08a6 * layout.cc (Layout::make_output_section): Call
Target::new_output_section.
	(Layout::attach_allocated_section_to_segment): Put large section
	sections in a separate load segment with the large segment flag
	set.
	(Layout::segment_precedes): Sort large data segments after other
	load segments.
	(align_file_offset): New static function.
	(Layout::set_segment_offsets): Use align_file_offset.
	* output.h (class Output_section): Add is_small_section_ and
	is_large_section_ fields.
	(Output_section::is_small_section): New function.
	(Output_section::set_is_small_section):  New function.
	(Output_section::is_large_section): New function.
	(Output_section::set_is_large_section): New function.
	(Output_section::is_large_data_section): New function.
	(class Output_segment): Add is_large_data_segment_ field.
	(Output_segment::is_large_data_segment): New function.
	(Output_segment::set_is_large_data_segment): New function.
	* output.cc (Output_section::Output_section): Initialize new
	fields.
	(Output_segment::Output_segment): Likewise.
	(Output_segment::add_output_section): Add assertion that large
	data sections always go in large data segments.  Force small data
	sections to the end of the list of data sections.  Force small BSS
	sections to the start of the list of BSS sections.  For large BSS
	sections to the end of the list of BSS sections.
	* symtab.h (class Symbol): Declare is_common_shndx.
	(Symbol::is_defined): Check Symbol::is_common_shndx.
	(Symbol::is_common): Likewise.
	(class Symbol_table): Define enum Commons_section_type.  Update
	declarations.  Add small_commons_ and large_commons_ fields.
	* symtab.cc (Symbol::is_common_shndx): New function.
	(Symbol_table::Symbol_table): Initialize new fields.
	(Symbol_table::add_from_object): Put small and large common
	symbols in the right list.
	(Symbol_table::sized_finalized_symbol): Check
	Symbol::is_common_shndx.
	(Symbol_table::sized_write_globals): Likewise.
	* common.cc (Symbol_table::do_allocate_commons): Allocate new
	common symbol lists.  Don't call do_allocate_commons_list if the
	list is empty.
	(Symbol_table::do_allocate_commons_list): Remove is_tls
	parameter.  Add comons_section_type parameter.  Change all
	callers.  Handle small and large common symbols.
	* object.cc (Sized_relobj::do_finalize_local_symbols): Check
	Symbol::is_common_shndx.
	* resolve.cc (symbol_to_bits): Likewise.
	* target.h (Target::small_common_shndx): New function.
	(Target::small_common_section_flags): New function.
	(Target::large_common_shndx): New function.
	(Target::large_common_section_flags): New function.
	(Target::new_output_section): New function.
	(Target::Target_info): Add small_common_shndx, large_common_shndx,
	small_common_section_flags, and large_common_section_flags
	fields.
	(Target::do_new_output_section): New virtual function.
	* arm.cc (Target_arm::arm_info): Initialize new fields.
	* i386.cc (Target_i386::i386_info): Likewise.
	* powerpc.cc (Target_powerpc::powerpc_info) [all versions]:
	Likewise.
	* sparc.c (Target_sparc::sparc_info) [all versions]: Likewise.
	* x86_64.cc (Target_x86_64::x86_64_info): Likewise.
	(Target_x86_64::do_new_output_section): New function.
	* configure.ac: Define conditional MCMODEL_MEDIUM.
	* testsuite/Makefile.am (check_PROGRAMS): Add large.
	(large_SOURCES, large_CFLAGS, large_DEPENDENCIES): Define.
	(large_LDFLAGS): Define.
	* testsuite/large.c: New file.
	* testsuite/testfile.cc (Target_test::test_target_info):
	Initialize new fields.
	* configure, testsuite/Makefile.in: Rebuild.
2009-06-22 06:51:53 +00:00
Cary Coutant 6d4796192d * symtab.h (needs_plt_entry): Check for unsatisfied reference from
an executable.
	(needs_dynamic_reloc): Likewise.
2009-03-25 01:34:25 +00:00
Ian Lance Taylor 8c50070107 * symtab.cc (Symbol_table::define_default_version): New function,
broken out of add_from_object.
	(Symbol_table::add_from_object): Call define_default_version.
	(Symbol_table::define_special_symbol): Add resolve_oldsym
	parameter.  Change all callers.  If the version for a symbol comes
	from a version script, resolve it with the symbol with the same
	name with no version.  Also add the symbol without a version if
	appropriate.
	(do_define_in_output_data): If resolving with oldsym, don't delete
	sym.
	(do_define_in_output_segment): Likewise.
	(do_define_as_constant): Likewise.
	* symtab.h (class Symbol_table): Update declarations.
2009-03-17 07:07:21 +00:00
Ian Lance Taylor fd9d194f04 PR 6811
* options.h (class Search_directory): Add is_system_directory.
	(class General_options): Declare is_in_system_directory.
	* options.cc (get_relative_sysroot): Make static.
	(get_default_sysroot): Make static.
	(General_optoins::is_in_system_directory): New function.
	* fileread.cc (Input_file::is_in_system_directory): New function.
	* fileread.h (class Input_file): Declare is_in_system_directory.
	* object.h (class Object): Add is_in_system_directory.
	(class Input_objects): Remove system_library_directory_ field.
	* object.cc (Input_objects::add_object): Don't set
	system_library_directory_.
	(input_objects::found_in_system_library_directory): Remove.
	* symtab.cc (Symbol_table::write_globals): Remove input_objects
	parameter.  Change all callers.
	(Symbol_table::sized_write_globals): Likewise.
	(Symbol_table::warn_about_undefined_dynobj_symbol): Likewise.
	Call Object::is_in_system_directory.
	* symtab.h (class Symbol_table): Update declarations.
2009-02-28 04:39:57 +00:00
Ian Lance Taylor 0602e05a84 PR 9836
* symtab.cc (Symbol_table::add_from_object): If the visibility is
	hidden or internal, force the symbol to be local.
	* resolve.cc (Symbol::override_visibility): Define.
	(Symbol::override_base): Use override_visibility.
	(Symbol_table::resolve): Likewise.
	(Symbol::override_base_with_special): Likewise.
	(Symbol_table::override_with_special): If the visibility is hidden
	or internal, force the symbol to be local.
	* symtab.h (class Symbol): Add set_visibility and
	override_visibility.
	* testsuite/ver_test_1.sh: New file.
	* testsuite/Makefile.am (check_SCRIPTS): Add ver_test_1.sh.
	(check_DATA): Add ver_test_1.syms.
	(ver_test_1.syms): New target.
	* testsuite/Makefile.in: Rebuild.
2009-02-27 19:57:46 +00:00
Sriraman Tallam 6d03d481a0 2009-01-20 Sriraman Tallam <tmsriram@google.com>
* Makefile.am (CCFILES): Add gc.cc.
	(HFILES): Add gc.h.
	* Makefile.in: Regenerate.
	* gold.cc (Gc_runner): New class.
	(queue_initial_tasks): Call garbage collection related tasks
	when corresponding options are invoked.
	(queue_middle_gc_tasks): New function.
	(queue_middle_tasks): Reorder tasks to allow relocs to be read and
	processed early before laying out sections during garbage collection.
	* gold.h (queue_middle_gc_tasks): New function.
	(is_prefix_of): Move from "layout.cc".
	* i386.cc (Target_i386::gc_process_relocs): New function.
	* layout.cc (is_prefix_of): Remove. Move to "gold.h"
	* main.cc (main): Create object of class "Garbage_collection".
	* object.cc (Relobj::copy_symbols_data): New function.
	(Relobj::is_section_name_included): New function.
	(Sized_relobj::do_layout): Allow this function to be called twice
	during garbage collection and defer layout of section during the
	first call.
	* object.h (Relobj::get_symbols_data): New function.
	(Relobj::is_section_name_included): New function.
	(Relobj::copy_symbols_data): New function.
	(Relobj::set_symbols_data): New function.
	(Relobj::get_relocs_data): New function.
	(Relobj::set_relocs_data): New function.
	(Relobj::is_output_section_offset_invalid): New pure virtual function.
	(Relobj::gc_process_relocs): New function.
	(Relobj::do_gc_process_relocs): New pure virtual function.
	(Relobj::sd_): New data member.
	(Sized_relobj::is_output_section_offset_invalid): New function.
	(Sized_relobj::do_gc_process_relocs): New function.
	* options.h (General_options::gc_sections): Modify to not be a no-op.
	(General_options::print_gc_sections): New option.
	* plugin.cc (Plugin_finish::run): Remove function call to
	Plugin_manager::layout_deferred_objects.  Move it to "gold.cc".
	* powerpc.cc (Target_powerpc::gc_process_relocs): New function.
	* reloc.cc (Read_relocs::run): Add task to process relocs and
	determine unreferenced sections when doing garbage collection.
	(Gc_process_relocs): New class.
	(Sized_relobj::do_gc_process_relocs): New function.
	(Sized_relobj::do_scan_relocs): Don't try to scan the relocs for
	sections that are garbage collected.
	* reloc.h (Gc_process_relocs): New class.
	* sparc.cc (Target_sparc::gc_process_relocs): New function.
	* symtab.cc (Symbol::should_add_dynsym_entry): Do not add entries for
	symbols whose corresponding sections are garbage collected.
	(Symbol_table::Symbol_table): Add new parameter for the garbage
	collection object.
	(Symbol_table::gc_mark_undef_symbols): New function.
	(Symbol_table::gc_mark_symbol_for_shlib): New function.
	(Symbol_table::gc_mark_dyn_syms): New function.
	(Symbol_table::resolve): Do not treat symbols seen in dynamic objects
	as garbage.
	(Symbol_table::add_from_object): Likewise.
	(Symbol_table::add_from_relobj): When building shared objects, do not
	treat externally visible symbols as garbage.
	(Symbol_table::sized_finalize_symbol): Do not check dynamic symbol
	table information for static and relocatable links.
	* symtab.h (Symbol_table::set_gc): New function.
	(Symbol_table::gc): New function.
	(Symbol_table::gc_mark_undef_symbols): New function.
	(Symbol_table::gc_mark_symbol_for_shlib): New function.
	(Symbol_table::gc_mark_dyn_syms): New function.
	(Symbol_table::gc_): New data member.
	* target.h (Sized_target::gc_process_relocs): New pure virtual
	function.
	* x86_64.cc (Target_x86_64::gc_process_relocs): New function.
	* testsuite/testfile.cc (Target_test::gc_process_relocs): New function.
2009-01-28 02:25:33 +00:00
Cary Coutant 89fc34211b Add plugin functionality for link-time optimization (LTO).
include/:
	* plugin-api.h: New file.

gold/:
	* configure.ac (plugins): Add --enable-plugins option.
	* configure: Regenerate.
	* config.in: Regenerate.
	* Makefile.am (LIBDL): New variable.
	(CCFILES): Add plugin.cc.
	(HFILES): Add plugin.h.
	(ldadd_var): Add LIBDL.
	* Makefile.in: Regenerate.

	* archive.cc: Include "plugin.h".
	(Archive::setup): Don't preread archive symbols when using a plugin.
	(Archive::get_file_and_offset): Add memsize parameter.  Change callers.
	(Archive::get_elf_object_for_member): Call plugin hooks for claiming
	files.
	(Archive::include_member): Add symbols from plugin objects.
	* archive.h (Archive::get_file_and_offset): Add memsize parameter.
	* descriptors.cc (Descriptors::open): Check for file descriptors
	abandoned by plugins.
	(Descriptors::claim_for_plugin): New function.
	* descriptors.h (Descriptors::claim_for_plugin): New function.
	(Open_descriptor::is_claimed): New field.
	(claim_descriptor_for_plugin): New function.
	* fileread.cc (File_read::claim_for_plugin): New function.
	* fileread.h (File_read::claim_for_plugin): New function.
	(File_read::descriptor): New function.
	* gold.cc: Include "plugin.h".
	(queue_initial_tasks): Add task to call plugin hooks for generating
	new object files.
	* main.cc: Include "plugin.h".
	(main): Load plugin libraries.
	* object.h (Pluginobj): Declare.
	(Object::pluginobj): New function.
	(Object::do_pluginobj): New function.
	(Object::set_target): New function.
	* options.cc: Include "plugin.h".
	(General_options::parse_plugin): New function.
	(General_options::General_options): Initialize plugins_ field.
	(General_options::add_plugin): New function.
	* options.h (Plugin_manager): Declare.
	(General_options): Add --plugin option.
	(General_options::has_plugins): New function.
	(General_options::plugins): New function.
	(General_options::add_plugin): New function.
	(General_options::plugins_): New field.
	* plugin.cc: New file.
	* plugin.h: New file.
	* readsyms.cc: Include "plugin.h".
	(Read_symbols::do_read_symbols): Check for archive before checking
	for ELF file.  Call plugin hooks to claim files.
	* resolve.cc (Symbol_table::resolve): Record when symbol is referenced
	from a real object file; force override when processing replacement
	files.
	* symtab.cc (Symbol::init_fields): Initialize in_real_elf_ field.
	(Symbol::init_base_object): Likewise.
	(Symbol::init_base_output_data): Likewise.
	(Symbol::init_base_output_segment): Likewise.
	(Symbol::init_base_constant): Likewise.
	(Symbol::init_base_undefined): Likewise.
	(Symbol::output_section): Assert that object is not a plugin.
	(Symbol_table::add_from_pluginobj): New function.
	(Symbol_table::sized_finalize_symbol): Treat symbols from plugins as
	undefined.
	(Symbol_table::sized_write_globals): Likewise.
	(Symbol_table::add_from_pluginobj): Instantiate template.
	* symtab.h (Sized_pluginobj): Declare.
	(Symbol::in_real_elf): New function.
	(Symbol::set_in_real_elf): New function.
	(Symbol::in_real_elf_): New field.
	(Symbol_table::add_from_pluginobj): New function.

	* testsuite/Makefile.am (AM_CFLAGS): New variable.
	(LIBDL): New variable.
	(LDADD): Add LIBDL.
	(check_PROGRAMS): Add plugin_test_1 and plugin_test_2.
	(check_SCRIPTS): Add plugin_test_1.sh and plugin_test_2.sh.
	(check_DATA): Add plugin_test_1.err and plugin_test_2.err.
	(MOSTLYCLEANFILES): Likewise.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/plugin_test.c: New file.
	* testsuite/plugin_test_1.sh: New file.
	* testsuite/plugin_test_2.sh: New file.
2008-09-19 22:54:57 +00:00
Ian Lance Taylor de4c45bd54 * symtab.h (Symbol::use_plt_offset): New function.
* i386.cc (Relocate::relocate): Call Symbol::use_plt_offset.
	* powerpc.cc (Relocate::relocate): Likewise.
	* sparc.cc (Relocate::relocate): Likewise.
	* x86_64.cc (Relocate::relocate): Likewise.
	* testsuite/weak_plt.sh: New test.
	* testsuite/weak_plt_main.cc: New test.
	* testsuite/weak_plt_shared.cc: New test.
	* testsuite/Makefile.am (check_SCRIPTS): Add weak_plt.sh.
	(check_PROGRAMS): Add weak_plt.
	(check_DATA): Add weak_plt_shared.so.
	(weak_plt_main_pic.o, weak_plt): New targets.
	(weak_plt_shared_pic.o, weak_plt_shared.so): New targets.
	* testsuite/Makefile.in: Rebuild.

	* testsuite/Makefile.am (weak_alias_test_1.so): Depend upon
	gcctestdir/ld.
	(weak_alias_test_2.so, weak_alias_test_4.so): Likewise.
	* testsuite/Makefile.in: Rebuild.
2008-08-04 22:22:13 +00:00
Ian Lance Taylor 95d14cd31e * symtab.cc (Symbol_table::resolve): Remove version parameter.
Change all callers.
	* symtab.h (class Symbol_table): Update declaration.
	* testsuite/ver_test_9.cc: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add ver_test_9.
	(ver_test_9_SOURCES, ver_test_9_DEPENDENCIES): Define.
	(ver_test_9_LDFLAGS, ver_test_9_LDADD): Define.
	(ver_test_9.so, ver_test_9.o): New targets.
	* testsuite/Makefile.in: Rebuild.
2008-07-23 14:36:09 +00:00
Ian Lance Taylor 92de84a60c * cref.cc: New file.
* cref.h: New file.
	* options.h (class General_options): Add --print-symbol-counts.
	* main.cc (main): Issue defined symbol report if requested.
	* archive.cc (Archive::interpret_header): Make into a const member
	function.
	(Archive::add_symbols): Call Input_objects::archive_start and
	archive_stop.
	(Archive::const_iterator): Define new class.
	(Archive::begin, Archive::end): New functions.
	(Archive::include_all_members): Rewrite to use iterator.
	(Archive::count_members): New function.
	* archive.h (class Archive): Update declarations.
	(Archive::filename): New function.
	* object.cc: Include "cref.h".
	(Sized_relobj::Sized_relobj): Initialize defined_count_.
	(Sized_relobj::do_get_global_symbol_counts): New function.
	(Input_objects::add_object): Add object to cross-referencer.
	(Input_objects::archive_start): New function.
	(Input_objects::archive_stop): New function.
	(Input_objects::print_symbol_counts): New function.
	* object.h: Declare Cref and Archive.
	(Object::get_global_symbol_counts): New function.
	(Object::do_get_global_symbol_counts): New pure virtual function.
	(class Sized_relobj): Add defined_count_ field.  Update
	declarations.
	(class Input_objects): Add cref_ field.  Update constructor.
	Update declarations.
	* dynobj.cc (Sized_dynobj::Sized_dynobj): Initialize symbols_ and
	defined_count_.
	(Sized_dynobj::do_add_symbols): Allocate symbols_ if printing
	symbol counts.
	(Sized_dynobj::do_get_global_symbol_counts): New function.
	* dynobj.h (class Sized_dynobj): Add fields symbols_ and
	defined_count_.  Update declarations.  Define Symbols typedef.
	* symtab.cc (Symbol_table::add_from_relobj): Add defined
	parameter.  Change all callers.
	(Symbol_table::add_from_dynobj): Add sympointers and defined
	parameters.  Change all callers.
	* symtab.h (class Symbol_table): Update declarations.
	* Makefile.am (CCFILES): Add cref.cc.
	(HFILES): Add cref.h.
	* Makefile.in: Rebuild.
2008-07-22 22:08:43 +00:00
Ian Lance Taylor 7d9e3d9854 * mapfile.cc: New file.
* mapfile.h: New file.
	* options.h (class General_options): Add -M/--print-map and -Map.
	* options.cc (General_options::finalize): Make -M equivalent to
	-Map -.
	* main.cc: Include <cstdio> and "mapfile.h".
	(main): Open mapfile if requested.
	* gold.cc (class Middle_runner): Add mapfile_ field.  Update
	constructor.  Change caller.
	(queue_initial_tasks): Add mapfile parameter.  Change caller.
	(queue_middle_tasks): Likewise.
	* gold.h (queue_initial_tasks, queue_middle_tasks): Update
	declarations.
	* archive.cc: Include "mapfile.h".
	(Archive::add_symbols): Add mapfile parameter.  Change all
	callers.  Pass mapfile, symbol, and reason to include_member.
	(Archive::include_all_members): Add mapfile parameter.  Change all
	callers.
	(Archive::include_member): Add mapfile, sym, and why parameters.
	Change all callers.  Report inclusion to map file.
	* archive.h: Include "fileread.h".
	(class Archive): Update declarations.
	(Archive::file): New const method.
	(class Add_archive_symbols): Add mapfile_ field.  Update
	constructor.  Change all callers.
	* readsyms.h (class Read_symbols): Likewise.
	(class Finish_group): Likewise.
	(class Read_script): Likewise.
	* common.cc: Include "mapfile.h".
	(Symbol_table::allocate_commons): Add mapfile parameter.  Change
	all callers.
	(Symbol_table::do_allocate_commons): Likewise.
	(Symbol_table::do_allocate_commons_list): Likewise.  Report common
	symbol allocation to mapfile.
	* common.h (class Allocate_commons_task): Add mapfile_ field.
	Update constructor.  Change all callers.
	* symtab.h (class Symbol_table): Update declarations.
	* layout.cc: Include "mapfile.h".
	(Layout_task_runner::run): Print information to mapfile.
	(Layout::create_gold_note): Change Output_data_fixed_space to
	Output_data_zero_fill.
	(Layout::create_build_id): Likewise.
	(Layout::print_to_mapfile): New function.
	* layout.h (class Layout_task_runner): Add mapfile_ field.  Update
	constructor.  Change caller.
	(class Layout): Declare print_to_mapfile.
	* output.cc (Output_section::Input_section::print_to_mapfile): New
	function.
	(Output_section::add_input_section): If producing a map, always
	add to input_sections_ list.
	(Output_section::do_print_to_mapfile): New function.
	(Output_segment::print_sections_to_mapfile): New function.
	(Output_segment::print_section_list_to_mapfile): New function.
	* output.h: Include "mapfile.h".
	(Output_data::print_to_mapfile): New function.
	(Output_data::do_print_to_mapfile): New virtual function.
	(Output_segment_headers::do_print_to_mapfile): New function.
	(Output_file_header::do_print_to_mapfile): New function.
	(Output_data_const::do_print_to_mapfile): New function.
	(class Output_data_const_buffer): Add map_name_ field.  Update
	constructor.  Change all callers.  Add do_print_to_mapfile
	function.
	(class Output_data_fixed_space): Likewise.
	(class Output_data_space): Likewise.
	(class Output_data_zero_fill): New class.
	(Output_data_strtab::do_print_to_mapfile): New function.
	(Output_data_reloc_base::do_print_to_mapfile): New function.
	(Output_relocatable_relocs::do_print_to_mapfile): New function.
	(Output_data_group::do_print_to_mapfile): New function.
	(Output_data_got::do_print_to_mapfile): New function.
	(Output_data_dynamic::do_print_to_mapfile): New function.
	(Output_symtab_xindex::do_print_to_mapfile): New function.
	(class Output_section): Declare do_print_to_mapflie.  Declare
	print_to_mapfile in Input_section.
	(class Output_segment): Declare new functions.
	* object.h (Sized_relobj::symbol_count): New function.
	* script-sections.cc
	(Output_section_element_dot_assignment::set_section_addresses):
	Change Output_data_fixed_space to Output_data_zero_fill.
	(Output_data_expression::do_print_to_mapfile): New function.
	* script.cc (read_input_script): Add mapfile parameter.  Change
	all callers.
	* script.h (read_input_script): Update declaration.
	* ehframe.h (Eh_frame_hdr::do_print_to_mapfile): New function.
	(Eh_frame::do_print_to_mapfile): New function.
	* merge.h (Output_merge_data::do_print_to_mapfile): New function.
	(Output_merge_string::do_print_to_mapfile): New function.
	* i386.cc (Output_data_plt_i386::do_print_to_mapfile): New
	function.
	* sparc.cc (Output_data_plt_sparc::do_print_to_mapfile): New
	function.
	* x86_64.cc (Output_data_plt_x86_64::do_print_to_mapfile): New
	function.
	* Makefile.am (CCFILES): Add mapfile.cc.
	(HFILES): Add mapfile.h.
	* Makefile.in: Rebuild.
2008-05-21 21:37:44 +00:00
Ian Lance Taylor 75517b77b5 * symtab.c (Symbol::init_base_output_data): Add version
parameter.  Change all callers.
	(Symbol::init_base_output_segment): Likewise.
	(Symbol::init_base_constant): Likewise.
	(Symbol::init_base_undefined): Likewise.
	(Sized_symbol::init_output_data): Likewise.
	(Sized_symbol::init_output_segment): Likewise.
	(Sized_symbol::init_constant): Likewise.
	(Sized_symbol::init_undefined): Likewise.
	(Symbol_table::do_define_in_output_data): If the new symbol has a
	version, mark it as the default.
	(Symbol_table::do_define_in_output_segment): Likewise.
	(Symbol_table::do_define_as_constant): Likewise.
	* symtab.h (class Symbol): Update declarations.
	(class Sized_symbol): Likewise.
	* resolve.cc (Symbol::override_version): New function.
	(Symbol::override_base: Call override_version.
	(Symbol::override_base_with_special): Likewise.
	* testsuite/ver_script_8.script: New file.
	* testsuite/Makefile.am (check_PROGRAMS): Add ver_test_8.
	(ver_test_8_SOURCES, ver_test_8_DEPENDENCIES): Define.
	(ver_test_8_LDFLAGS, ver_test_8_LDADD): Define.
	(ver_test_8_1.so, ver_test_8_2.so): New targets.
2008-05-08 18:44:33 +00:00
Ian Lance Taylor f3e9c5c517 PR 6049
* options.h (DEFINE_set): Add VARNAME_begin and VARNAME_end
	functions.
	(class General_options): Remove existing --undefined, and add
	--no-undefined instead.  Add new --undefined as synonym for -u.
	* archive.cc (Archive::add_symbols): Check whether symbol was
	named with -u.
	* gold.cc (queue_middle_tasks): Add -u symbols to symbol table.
	* symtab.h (class Symbol): Rename CONSTANT to IS_CONSTANT; change
	all uses.  Add IS_UNDEFINED.  Update declarations to split
	different versions of init_base.  Declare init_base_undefined.
	(Symbol::is_defined): Handle IS_UNDEFINED.
	(Symbol::is_undefined): Likewise.
	(Symbol::is_weak_undefined): Call is_undefined.
	(Symbol::is_absolute): Handle IS_CONSTANT.
	(class Sized_symbol): Update declarations to split different
	versions of init.  Declare init_undefined.
	(class Symbol_table): Declare new functions.
	* symtab.cc (Symbol::init_base_object): Rename from init_base.
	Change all callers.
	(Symbol::init_base_output_data): Likewise.
	(Symbol::init_base_output_segment): Likewise.
	(Symbol::init_base_constant): Likewise.
	(Symbol::init_base_undefined): New function.
	(Sized_symbol::init_object): Rename from init.  Change all
	callers.
	(Sized_symbol::init_output_data): Likewise.
	(Sized_symbol::init_output_segment): Likewise.
	(Sized_symbol::init_constant): Likewise.
	(Sized_symbol::init_undefined): New function.
	(Symbol_table::add_undefined_symbols_from_command_line): New
	function.
	(Symbol_table::do_add_undefined_symbols_from_command_line): New
	function.
	(Symbol::final_value_is_known): Handle IS_UNDEFINED.
	(Symbol::output_section): Likewise.
	(Symbol::set_output_section): Likewise.
	(Symbol_table::sized_finalize_symbol): Likewise.
	(Symbol_table::sized_write_globals): Likewise.
	* resolve.cc (Symbol_table::should_override): Likewise.
	(Symbol::override_base_with_special): Likewise.
2008-05-07 06:08:01 +00:00
Ian Lance Taylor f1f70eae28 * options.h (class General_options): Add -Bsymbolic-functions.
* symtab.h (Symbol::is_preemptible): Check for
	-Bsymbolic-functions.
2008-05-06 17:46:31 +00:00
Ian Lance Taylor d491d34e93 * object.cc (Xindex::initialize_symtab_xindex): New function.
(Xindex::read_symtab_xindex): New function.
	(Xindex::sym_xindex_to_shndx): New function.
	(Sized_relobj::find_symtab): Pick up SHT_SYMTAB_SHNDX section if
	available.
	(Sized_relobj::do_initialize_xindex): New function.
	(Sized_relobj::do_read_symbols): Adjust section links.
	(Sized_relobj::symbol_section_and_value): Add is_ordinary
	parameter.  Change all callers.
	(Sized_relobj::include_section_group): Adjust section links and
	symbol section indexes.
	(Sized_relobj::do_layout): Adjust section links.
	(Sized_relobj::do_count_local_symbols): Adjust section links and
	symbol section indexes.
	(Sized_relobj::do_finalize_local_symbols): Distinguish between
	ordinary and special symbols.
	(Sized_relobj::write_local_symbols): Add symtab_xindex and
	dynsym_xindex parameters.  Change all callers.  Adjust section
	links.  Use SHN_XINDEX when needed.
	(Sized_relobj::get_symbol_location_info): Adjust section links.
	Don't get fooled by special symbols.
	* object.h (class Xindex): Define.
	(class Object): Add xindex_ parameter.  Declare virtual functoin
	do_initialize_xindex.
	(Object::adjust_sym_shndx): New function.
	(Object::set_xindex): New protected function.
	(class Symbol_value): Add is_ordinary_shndx_ field.
	(Symbol_value::Symbol_value): Initialize is_ordinary_shndx_.
	(Symbol_value::value): Assert ordinary section.
	(Symbol_value::initialize_input_to_output_map): Likewise.
	(Symbol_value::set_input_shndx): Add is_ordinary parameter.
	Change all callers.
	(Symbol_value::input_shndx): Add is_ordinary parameter.  Change
	all callers.
	(class Sized_relobj): Update declarations.
	(Sized_relobj::local_symbol_input_shndx): Add is_ordinary
	parameter.  Change all callers.
	(Sized_relobj::adjust_shndx): New function.
	* dynobj.cc (Sized_dynobj::Sized_dynobj): Initialize dynsym_shndx_
	field.
	(Sized_dynobj::find_dynsym_sections): Remove pdynsym_shndx
	parameter.  Change all callers.  Pick up SHT_DYNSYM_SHNDX section
	for SHT_DYNSYM section if available.  Set dynsym_shndx_ field.
	(Sized_dynobj::read_dynsym_section): Adjust section links.
	(Sized_dynobj::read_dynamic): Likewise.
	(Sized_dynobj::do_read_symbols): Use dynsym_shndx_ field.  Adjust
	section links.
	(Sized_dynobj::do_initialize_xindex): New function.
	* dynobj.h (class Sized_dynobj): Add dynsym_shndx_ field.  Declare
	do_initialize_xindex.
	(Sized_dynobj::adjust_shndx): New function.
	* layout.cc (Layout::Layout): Initialize symtab_xindex_ and
	dynsym_xindex_ fields.
	(Layout::finalize): Add a call to set_section_indexes before
	creating the symtab sections.
	(Layout::set_section_indexes): Don't do anything if the section
	already has a section index.
	(Layout::create_symtab_sections): Add shnum parameter.  Change
	caller.  Create .symtab_shndx section if needed.
	(Layout::create_shdrs): Add shstrtab_section parameter.  Change
	caller.
	(Layout::allocated_output_section_count): New function.
	(Layout::create_dynamic_symtab): Create .dynsym_shndx section if
	needed.
	* layout.h (class Layout): Add symtab_xindex_ and dynsym_xindex_
	fields.  Update declarations.
	(Layout::symtab_xindex): New function.
	(Layout::dynsym_xindex): New function.
	(class Write_symbols_task): Add layout_ field.
	(Write_symbols_task::Write_symbols_task): Add layout parameter.
	Change caller.
	* output.cc (Output_section_headers::Output_section_headers): Add
	shstrtab_section parameter.  Change all callers.
	(Output_section_headers::do_sized_write): Store overflow values
	for section count and section string table section index in
	section header zero.
	(Output_file_header::do_sized_write): Check for overflow of
	section count and section string table section index.
	(Output_symtab_xindex::do_write): New function.
	(Output_symtab_xindex::endian_do_write): New function.
	* output.h (class Output_section_headers): Add shstrtab_section_.
	Update declarations.
	(class Output_symtab_xindex): Define.
	(Output_section::has_out_shndx): New function.
	* symtab.cc (Symbol::init_fields): Initialize is_ordinary_shndx_
	field.
	(Symbol::init_base): Add st_shndx and is_ordinary parameters.
	Change all callers.
	(Sized_symbol::init): Likewise.
	(Symbol::output_section): Check for ordinary symbol.
	(Symbol_table::add_from_object): Remove orig_sym parameter.  Add
	st_shndx, is_ordinary, and orig_st_shndx parameters.  Change all
	callers.
	(Symbol_table::add_from_relobj): Add symndx_offset parameter.
	Change all callers.  Simplify handling of symbols from sections
	not included in the link.
	(Symbol_table::add_from_dynobj): Handle ordinary symbol
	distinction.
	(Weak_alias_sorter::operator()): Assert that symbols are
	ordinary.
	(Symbol_table::sized_finalize_symbol): Handle ordinary symbol
	distinction.
	(Symbol_table::write_globals): Add symtab_xindex and dynsym_xindex
	parameters.  Change all callers.
	(Symbol_table::sized_write_globals): Likewise.  Handle ordinary
	symbol distinction.  Use SHN_XINDEX when needed.
	(Symbol_table::write_section_symbol): Add symtab_xindex
	parameter.  Change all callers.
	(Symbol_table::sized_write_section_symbol): Likewise.  Use
	SHN_XINDEX when needed.
	* symtab.h (class Symbol): Add is_ordinary_shndx_ field.  Update
	declarations.
	(Symbol::shndx): Add is_ordinary parameter.  Change all callers.
	(Symbol::is_defined): Check is_ordinary.
	(Symbol::is_undefined, Symbol::is_weak_undefined): Likewise.
	(Symbol::is_absolute, Symbol::is_common): Likewise.
	(class Sized_symbol): Update declarations.
	(class Symbol_table): Update declarations.
	* resolve.cc (Symbol::override_base): Add st_shndx and is_ordinary
	parameters.  Change all callers.
	(Sized_symbol::override): Likewise.
	(Symbol_table::override): Likewise.
	(symbol_to_bits): Add is_ordinary parameter.  Change all callers.
	(Symbol_table::resolve): Remove orig_sym parameter.  Add st_shndx,
	is_ordinary, and orig_st_shndx parameters.  Change all callers.
	* copy-relocs.cc (Copy_relocs::emit_copy_reloc): Require symbol
	to be in an ordinary section.
	* dwarf_reader.cc (Sized_dwarf_line_info::symbol_section): Add
	object and is_ordinary parameters.  Change all callers.
	(Sized_dwarf_line_info::read_relocs): Add object parameter.
	Change all callers.  Don't add undefined or non-ordinary symbols
	to reloc_map_.
	(Sized_dwarf_line_info::read_line_mappings): Add object parameter.
	Change all callers.
	* dwarf_reader.h (class Sized_dwarf_line_info): Update
	declarations.
	* ehframe.cc (Eh_frame::read_fde): Check for ordinary symbol.
	* reloc.cc (Sized_relobj::do_read_relocs): Adjust section links.
	(Sized_relobj::relocate_sections): Likewise.
	* target-reloc.h (scan_relocs): Adjust section symbol index.
	(scan_relocatable_relocs): Likewise.
	* i386.cc (Scan::local): Check for ordinary symbols.
	* sparc.cc (Scan::local): Likewise.
	* x86_64.cc (Scan::local): Likewise.
	* testsuite/binary_unittest.cc (Sized_binary_test): Update calls
	to symbol_section_and_value.
	* testsuite/many_sections_test.cc: New file.
	* testsuite/Makefile.am (BUILT_SOURCES): Define.
	(check_PROGRAMS): Add many_sections_test.
	(many_sections_test_SOURCES): Define.
	(many_sections_test_DEPENDENCIES): Define.
	(many_sections_test_LDFLAGS): Define.
	(BUILT_SOURCES): Add many_sections_define.h.
	(many_sections_define.h): New target.
	(BUILT_SOURCES): Add many_sections_check.h.
	(many_sections_check.h): New target.
	(check_PROGRAMS): Add many_sections_r_test.
	(many_sections_r_test_SOURCES): Define.
	(many_sections_r_test_DEPENDENCIES): Define.
	(many_sections_r_test_LDFLAGS): Define.
	(many_sections_r_test_LDADD): Define.
	(many_sections_r_test.o): New target.
	* testsuite/Makefile.in: Rebuild.
2008-04-19 18:30:58 +00:00
Ian Lance Taylor 155a0dd763 * common.cc (Symbol_table::allocate_commons): Remove options
parameter.  Change caller.
	(Symbol_table::do_allocate_commons): Remove options parameter.
	Change caller.  Just call do_allocate_commons_list twice.
	(Symbol_table::do_allocate_commons_list): New function, broken out
	of do_allocate_commons.
	* common.h (class Allocate_commons_task): Remove options_ field.
	Update constructor.
	* symtab.cc (Symbol_table::Symbol_table): Initialize
	tls_commons_.
	(Symbol_table::add_from_object): Put TLS common symbols on
	tls_commons_ list.
	(Symbol_table::sized_finalize_symbol): Handle STT_TLS symbols
	which are IN_OUTPUT_DATA.
	* symtab.h (class Symbol_table): Add tls_commons_ field.  Update
	allocate_commons and do_allocate_commons declarations.  Declare
	do_allocate_commons_list.
	* gold.cc (queue_middle_tasks): Update creation of
	Allocate_commons_task to not pass options.
	* testsuite/Makefile.am (INCLUDES): Add -I.. .
	(TLS_TEST_C_FLAGS): New variable.
	(tls_test_c_pic.o): New target.
	(tls_test_shared.so): Link in tls_test_c_pic.o.
	(tls_test_c_pic_ie.o): New target.
	(tls_test_ie_shared.so): Link in tls_test_c_pic_ie.o.
	(tls_test_DEPENDENCIES, tls_test_LDADD): Add tls_test_c.o.
	(tls_test_c.o): New target.
	(tls_pic_test_DEPENDENCIES): Add tls_test_c_pic.o.
	(tls_pic_test_LDADD): Likewise.
	(tls_shared_gd_to_ie_test_DEPENDENCIES): Add tls_test_c_pic.o.
	(tls_shared_gd_to_ie_test_LDADD): Likewise.
	(tls_test_c_gnu2.o): New target.
	(tls_shared_gnu2_gd_to_ie_test_DEPENDENCIES): Add
	tls_test_c_gnu2.o.
	(tls_shared_gnu2_gd_to_ie_test_LDADD): Likewise.
	(tls_test_gnu2_shared.so): Link in tls_test_c_gnu2.o.
	(tls_test_shared_nonpic.so): Link in tls_test_c.o.
	* testsuite/tls_test.cc: Include "config.h".
	(t_last): Call t11_last.
	* testsuite/tls_test.h (t11, t11_last): Declare.
	* testsuite/tls_test_c.c: New file.
	* testsuite/tls_test_main.cc (thread_routine): Call t11.
	* configure.ac: Check for OpenMP support.
	* configure, config.in, Makefile.in: Rebuild.
	* testsuite/Makefile.in: Rebuild.
2008-04-17 07:12:00 +00:00
Cary Coutant f3c69fcab1 * symtab.h (Symbol::is_strong_undefined): Removed unused function.
(Symbol::needs_plt_entry): Allow weak undefined symbols.
	(Symbol::needs_dynamic_reloc): Allow weak undefined symbols when
	building shared libraries.
	* testsuite/Makefile.am (weak_undef_nonpic_test): New target.
	(weak_undef_file1_nonpic.o, weak_undef_file2_nonpic.o)
	(weak_undef_lib_nonpic.so, alt/weak_undef_lib_nonpic.so): New targets.
	* testsuite/Makefile.in: Rebuild.
	* testsuite/weak_undef.h: New file.
	* testsuite/weak_undef_file1.cc: Add extra test cases.
	* testsuite/weak_undef_file2.cc: Likewise.
	* testsuite/weak_undef_test.cc: Likewise.
2008-04-17 00:14:36 +00:00
Ian Lance Taylor 0864d55193 * options.h (class General_options): Define --wrap as a special
option.  Add wrap_symbols_ field.
	(General_options::any_wrap_symbols): New function.
	(General_options::is_wrap_symbol): New function.
	* options.cc (General_options::parse_wrap): New function.
	(General_options::General_options): Initialize wrap_symbols_.
	* symtab.cc (Symbol_table::wrap_symbol): New function.
	(Symbol_table::add_from_object): Handle --wrap.
	* symtab.h (class Symbol_table): Declare wrap_symbol.
	* target.h (Target::wrap_char): New function.
	(Target::Target_info): Add wrap_char field.
	* i386.cc (Target_i386::i386_info): Initialize wrap_char.
	* x86_64.cc (Target_x86_64::x86_64_info): Likewise.
	* testsuite/testfile.cc (Target_test::test_target_info):
	Likewise.
2008-04-09 00:48:13 +00:00
Cary Coutant 86925eef33 2008-04-04 Cary Coutant <ccoutant@google.com>
* symtab.h (Symbol::is_weak_undefined): New function.
	(Symbol::is_strong_undefined): New function.
	(Symbol::is_absolute): New function.
	(Symbol::needs_plt_entry): Exclude weak undefined symbols.
	(Symbol::needs_dynamic_reloc): Exclude weak undefined and
	absolute symbols.
	* testsuite/Makefile.am (check_PROGRAMS): Add weak_undef_test.
	(weak_undef_test): New target.
	* testsuite/Makefile.in: Rebuild.
	* testsuite/weak_undef_file1.cc: New file.
	* testsuite/weak_undef_file2.cc: New file.
	* testsuite/weak_undef_test.cc: New file.
2008-04-04 17:24:47 +00:00
Cary Coutant 0a65a3a740 * i386.cc (Target_i386::Got_type): New enum declaration.
(Target_i386::Scan::local): Updated callers of Output_data_got
	member functions.
	(Target_i386::Scan::global): Likewise.
	(Target_i386::Relocate::relocate): Likewise.
	(Target_i386::Relocate::relocate_tls): Likewise.
	* object.h (Got_offset_list): New class.
	(Sized_relobj::local_has_got_offset): Added got_type parameter.
	(Sized_relobj::local_got_offset): Likewise.
	(Sized_relobj::set_local_got_offset): Likewise.
	(Sized_relobj::local_has_tls_got_offset): Removed.
	(Sized_relobj::local_tls_got_offset): Removed.
	(Sized_relobj::set_local_tls_got_offset): Removed.
	(Sized_relobj::Local_got_offsets): Changed to store a list of offsets.
	* output.cc (Output_data_got::add_global): Added got_type parameter.
	(Output_data_got::add_global_with_rel): Likewise.
	(Output_data_got::add_global_with_rela): Likewise.
	(Output_data_got::add_global_pair_with_rel): New function.
	(Output_data_got::add_global_pair_with_rela): New function.
	(Output_data_got::add_local): Added got_type parameter.
	(Output_data_got::add_local_with_rel): Likewise.
	(Output_data_got::add_local_with_rela): Likewise.
	(Output_data_got::add_local_pair_with_rel): New function.
	(Output_data_got::add_local_pair_with_rela): New function.
	(Output_data_got::add_global_tls): Removed.
	(Output_data_got::add_global_tls_with_rel): Removed.
	(Output_data_got::add_global_tls_with_rela): Removed.
	(Output_data_got::add_local_tls): Removed.
	(Output_data_got::add_local_tls_with_rel): Removed.
	(Output_data_got::add_local_tls_with_rela): Removed.
	* output.h (Output_data_got::add_global): Added got_type parameter.
	(Output_data_got::add_global_with_rel): Likewise.
	(Output_data_got::add_global_with_rela): Likewise.
	(Output_data_got::add_global_pair_with_rel): New function.
	(Output_data_got::add_global_pair_with_rela): New function.
	(Output_data_got::add_local): Added got_type parameter.
	(Output_data_got::add_local_with_rel): Likewise.
	(Output_data_got::add_local_with_rela): Likewise.
	(Output_data_got::add_local_pair_with_rel): New function.
	(Output_data_got::add_local_pair_with_rela): New function.
	(Output_data_got::add_global_tls): Removed.
	(Output_data_got::add_global_tls_with_rel): Removed.
	(Output_data_got::add_global_tls_with_rela): Removed.
	(Output_data_got::add_local_tls): Removed.
	(Output_data_got::add_local_tls_with_rel): Removed.
	(Output_data_got::add_local_tls_with_rela): Removed.
	* resolve.cc (Symbol::override_base_with_special): Removed
	reference to has_got_offset_ field.
	* symtab.cc (Symbol::init_fields): Replaced initialization
	of got_offset_ with got_offsets_.  Removed initialization
	of has_got_offset_
	*symtab.h (Symbol::has_got_offset): Aded got_type parameter.
	(Symbol::got_offset): Likewise.
	(Symbol::set_got_offset): Likewise.
	(Symbol::has_tls_got_offset): Removed.
	(Symbol::tls_got_offset): Removed.
	(Symbol::set_tls_got_offset): Removed.
	(Symbol::got_offset_): Removed.
	(Symbol::tls_mod_got_offset_): Removed.
	(Symbol::tls_pair_got_offset_): Removed.
	(Symbol::got_offsets_): New field.
	(Symbol::has_got_offset): Removed.
	(Symbol::has_tls_mod_got_offset): Removed.
	(Symbol::has_tls_pair_got_offset): Removed.
	* x86_64.cc (Target_x86_64::Got_type): New enum declaration.
	(Target_x86_64::Scan::local): Updated callers of Output_data_got
	member functions.
	(Target_x86_64::Scan::global): Likewise.
	(Target_x86_64::Relocate::relocate): Likewise.
	(Target_x86_64::Relocate::relocate_tls): Likewise.
2008-03-25 18:37:16 +00:00
Ian Lance Taylor be3e620119 Don't get confused about whether a symbol is the default version if we
see a later reference to it.  Add tests for this case.
2008-03-14 05:57:19 +00:00
Ian Lance Taylor ebdbb4583d Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
Ian Lance Taylor 7d1a9ebbf2 Remove gcc 3.2 compatibility hacks. 2008-02-29 19:19:17 +00:00
Ian Lance Taylor 8851eccaec From Craig Silverstein: Have Parameters point to General_options. 2008-02-28 00:18:24 +00:00
Ian Lance Taylor 45aa233bdc From Craig Silverstein: rename option functions for future option
handling rewrite.
2008-02-26 21:45:30 +00:00
Ian Lance Taylor caa9d5d919 Assignments in linker scripts override definitions from object files. 2008-02-13 01:20:38 +00:00
Ian Lance Taylor 77e655378d Track sections for expressions. 2008-02-09 01:22:17 +00:00
Ian Lance Taylor 8fc19601e8 From Cary Coutant: fix handling of undefined symbols in shared
libraries.
2008-02-08 22:49:22 +00:00
Ian Lance Taylor a445fddf82 Fully implement the SECTIONS clause. 2008-02-04 05:43:05 +00:00
Ian Lance Taylor 9b07f471e3 Don't pass around the target in order to define symbols; get it from
the parameters instead.
2008-01-26 01:17:45 +00:00
Ian Lance Taylor 5240d12aa0 From Cary Coutant: Fix last patch. 2008-01-24 00:51:57 +00:00
Ian Lance Taylor 55a934330a Originally from Craig Silverstein, with changes: support using a
version script to force symbols to be local.
2008-01-24 00:15:00 +00:00
Ian Lance Taylor 0700cf329e From Cary Coutant: Fix mixing PIC and non-PIC relocs in the same
shared library.
2008-01-23 07:15:59 +00:00
Ian Lance Taylor 091244672e From Andrew Chatham and Craig Silverstein: Add support for version
scripts.
2008-01-15 23:41:28 +00:00
Ian Lance Taylor cb29561284 Reduce the number of system calls. Use readv instead of pread. Do
better handling of cached views.
2008-01-02 23:48:49 +00:00
Ian Lance Taylor fe8718a463 Convert more instances of off_t to be 32-bit types. 2007-12-20 21:21:24 +00:00
Ian Lance Taylor 8383303e0a Add section_size_type and section_offset_type, use them to replace a
lot of instances of off_t.
2007-12-18 00:48:04 +00:00
Ian Lance Taylor 17a1d0a9b2 Rewrite workqueue. This version eliminates the master thread, and
reduces the amount of locking required to find a new thread to run.
2007-12-14 19:00:21 +00:00
Ian Lance Taylor 6d01333390 From Craig Silverstein: size hash tables to avoid resizing. 2007-12-14 05:24:17 +00:00
Ian Lance Taylor e8c846c359 From Cary Coutant: Fix handling of RELATIVE RELA relocs. 2007-12-07 19:32:59 +00:00
Ian Lance Taylor abaa399568 Print symbol table statistics with --stats. 2007-12-04 23:11:35 +00:00
Ian Lance Taylor c79126688f Add threading support. 2007-11-22 00:05:51 +00:00
Ian Lance Taylor a2b1aa12f7 From Craig Silverstein: Add support for --demangle. 2007-11-15 01:12:55 +00:00
Ian Lance Taylor 07f397aba3 From Cary Coutant: Improve i386 shared library TLS support. 2007-11-14 22:31:02 +00:00
Ian Lance Taylor 78f156961e From Craig Silverstein: Report output file name with ODR violation
warning message.
2007-11-14 18:44:58 +00:00
Ian Lance Taylor 9a2d698415 Add heuristics for undefined symbol warnings. 2007-11-14 16:53:25 +00:00
Ian Lance Taylor 70e654ba48 From Craig Silverstein: First cut at detecting ODR violations. 2007-11-13 20:02:32 +00:00
Ian Lance Taylor 386c048c7a Correct handling of GOT references in a regular object. 2007-11-12 17:51:55 +00:00
Ian Lance Taylor d61c6bd41c From Cary Coutant: More shared library support, some refactorization. 2007-11-09 19:45:08 +00:00
Ian Lance Taylor 730cdc88f7 Generate a complete exception frame header. Discard duplicate
exception frame information.
2007-11-09 07:00:15 +00:00
Ian Lance Taylor 35cdfc9a87 Add support for PT_GNU_STACK. 2007-10-23 05:05:48 +00:00
Ian Lance Taylor 46fe162319 Fix versions of copied symbols. 2007-10-22 23:08:22 +00:00
Ian Lance Taylor 51b08ebe94 Add support for -Bsymbolic. 2007-10-18 23:20:53 +00:00
Ian Lance Taylor 436ca963fd From Cary Coutant: preliminary shared library support. 2007-10-16 23:23:08 +00:00
Ian Lance Taylor aeddab66fe Keep track of weak aliases, so that overriding environ works. 2007-10-14 15:35:27 +00:00
Ian Lance Taylor d20222a1e7 Better multiple definition errors. 2007-10-14 07:10:20 +00:00
Ian Lance Taylor 75f2446ec3 Run all error handling through an Errors object. Delete output file
on error.
2007-10-14 06:49:14 +00:00
Ian Lance Taylor cfd73a4e26 Add an option for Stringpools to not copy strings. 2007-10-12 06:06:34 +00:00
Ian Lance Taylor b3b74ddc6e Use parameters to track whether we are doing a static link. Fix up
final_value_is_known for weak undefined symbols.  Pointed out by Cary
Coutant.
2007-09-28 06:36:25 +00:00
Ian Lance Taylor 9025d29d14 Put size and endianness in parameters. 2007-09-26 07:01:35 +00:00
Ian Lance Taylor ab5c9e90a6 Use special value when we refer a function symbol in some way other
than calling it.
2007-09-23 05:31:48 +00:00
Ian Lance Taylor 6cb15b7f89 Add licensing text to every source file. 2007-09-22 21:02:10 +00:00
Ian Lance Taylor 306d9ef048 Canonicalize name and version when working with special symbols. 2007-09-22 04:40:13 +00:00
Ian Lance Taylor 7e1edb9089 Add global parameters. 2007-09-21 07:20:01 +00:00
Ian Lance Taylor 86f2e68346 Let special symbols override existing symbols rather than
reinitializing them.
2007-09-19 06:02:29 +00:00
Ian Lance Taylor 429c15693c Any symbol which is in both a regular object and a dynamic object
requires an entry in the dynamic symbol table.
2007-08-29 05:48:24 +00:00
Ian Lance Taylor 1ebd95fdf1 Copy in_reg and in_dyn when resolving NAME/VERSION with NAME/NULL. 2007-08-29 03:42:51 +00:00
Ian Lance Taylor a6badf5a97 Add support for -E/--export-dynamic. Also clean up --help output a bit. 2007-08-22 05:06:38 +00:00
Ian Lance Taylor 008db82ec1 Don't emit symbols seen only in dynamic object, don't read duplicate
dynamic object.
2006-12-06 06:28:56 +00:00
Ian Lance Taylor 14b3174058 Generate version information. 2006-12-06 00:02:36 +00:00
Ian Lance Taylor 6a4699867a gcc 3.2.2 portability hacks. 2006-12-01 16:58:12 +00:00
Ian Lance Taylor 16649710df Can now dynamically link hello, world. 2006-12-01 16:51:25 +00:00
Ian Lance Taylor a3ad94edd4 Hash tables, dynamic section, i386 PLT, gold_assert. 2006-11-29 17:56:40 +00:00
Ian Lance Taylor c06b7b0ba3 Snapshot. Includes first cut at output relocation sections. 2006-11-16 00:38:25 +00:00
Ian Lance Taylor dbe717effb More dynamic object support, initial scripting support. 2006-11-14 19:21:05 +00:00
Ian Lance Taylor f0641a0b38 Rework stringpool and hash tables so that we always generate the same
output regardless of randomize_va_space.
2006-11-07 04:40:46 +00:00
Ian Lance Taylor f6ce93d6e9 Split Object into Dynobj and Relobj, incorporate elfcpp swapping changes. 2006-11-06 22:46:08 +00:00
Ian Lance Taylor 593f47df45 gcc 3.2.2 portability hacks. 2006-11-03 18:38:43 +00:00
Ian Lance Taylor ead1e4244a Can now do a full static link of hello, world in C or C++ 2006-11-03 18:26:11 +00:00
Ian Lance Taylor 92e059d8dc Framework for relocation scanning. Implement simple static TLS
relocations.
2006-10-20 20:40:49 +00:00
Ian Lance Taylor 5482377ddc Clean up HAVE_MEMBER_TEMPLATE_SPECIFICATIONS somewhat. 2006-09-29 22:34:01 +00:00
Ian Lance Taylor 61ba1cf936 Snapshot. Now able to produce a minimal executable which actually
runs.
2006-09-29 19:58:17 +00:00
Ian Lance Taylor 75f65a3e30 Finished layout code. 2006-09-27 22:53:42 +00:00
Ian Lance Taylor 274e99f9ae g++ 3.2.2 portability fixes. 2006-09-26 21:50:25 +00:00
Ian Lance Taylor 54dc642545 More section layout code. 2006-09-26 21:00:34 +00:00
Ian Lance Taylor a2fb1b05e4 New drop, with first cut of section layout code. 2006-09-21 22:13:18 +00:00
Ian Lance Taylor 1564db8db6 More symbol resolution code. 2006-09-07 21:21:41 +00:00
Ian Lance Taylor 14bfc3f555 Another snapshot of the current state of the sources. Gets to the
point of symbol resolution and can now issue a multiple definition
error.  Also added target selection infrastructure.
2006-08-18 22:29:20 +00:00
Ian Lance Taylor bae7f79e03 Initial CVS checkin of gold 2006-08-04 23:10:59 +00:00